Soubhi Hussein, Y., Yusoff Alias, M., A. Abdulkafi, A., Omar, N., & Kamarulzamin Bin Salleh, M. (2018). Expectation-maximization-based channel estimation algorithm for OFDM visible light communication systems. International Journal of Engineering & Technology, 7(4), 2638-2645. https://doi.org/10.14419/ijet.v7i4.15994